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GEN3 concrete is one of the most commonly used concrete mixes in domestic and light commercial construction projects. Known for its versatility, durability, and cost-effectiveness, GEN3 concrete is widely specified for foundations, paving, patios, pathways, and general building work.
Whether you are a contractor, builder, property developer, or homeowner, understanding the properties and applications of GEN3 concrete can help you choose the right material for your project.
GEN3 concrete is a standard ready-mix concrete designed for general-purpose construction. In the British concrete classification system, GEN3 belongs to the “GEN” category, which refers to designated mixes used in non-specialist applications.
This concrete grade typically provides a compressive strength of:
20 N/mm220\ \text{N/mm}^2
after 28 days of curing.
GEN3 concrete is often compared to C20 concrete because both offer similar strength characteristics suitable for domestic and light structural work.
One of the biggest advantages of GEN3 concrete is its flexibility. It is suitable for a wide variety of construction applications, especially where moderate strength and durability are required.
GEN3 concrete can be used in numerous domestic and commercial applications. This versatility makes it one of the most popular ready-mix concrete options in the construction industry.
Compared to higher-strength concrete grades, GEN3 concrete is more affordable while still offering reliable performance for many projects.
Although it is considered a general-purpose mix, GEN3 concrete delivers excellent compressive strength and long-term durability when properly installed and cured.
Builders and contractors appreciate GEN3 concrete because it is easy to pour, level, and finish, making construction work more efficient.
GEN3 concrete performs well in outdoor environments such as patios, paths, and foundations, especially when proper drainage and finishing techniques are applied.
The strength of concrete is one of the most important factors when selecting a mix for construction.
GEN3 concrete achieves approximately:
fc=20 MPaf_c=20\ \text{MPa}
after full curing.
This strength level is suitable for:
However, GEN3 concrete may not be suitable for heavily reinforced structural elements or high-load industrial applications.
To achieve the best performance from GEN3 concrete, consider the following tips:
A stable and compacted sub-base improves the durability and lifespan of the concrete installation.
Concrete should cure slowly to achieve maximum strength. Keep the surface moist and protected during the curing period.
Very hot or freezing temperatures can affect curing and overall concrete quality.
Professional installation helps ensure proper mixing, pouring, leveling, and finishing.
GEN3 concrete remains a preferred choice because it balances strength, affordability, and versatility. It is suitable for a wide range of construction projects without the additional cost associated with high-strength specialist mixes.
Builders trust GEN3 concrete for everyday construction needs, especially in residential and light commercial environments.
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Quick answers to common questions about our concrete services.
No, we know how difficult it can be to accurately estimate how much concrete you need. Just order the approximate amount and we only charge for the mixture you actually use.
We ideally need at least two days to prepare an order, however we can often fit in same-day appointments. Please call as soon as possible and we will do our best to accommodate you.
The dimensions of our trucks are 3.75m tall, 3m wide and 10.5m long.
Our lorries reach around 5m.
A cubic metre of concrete weighs 2.4 tonnes, which is equivalent to around 25 wheelbarrow loads.
Concrete requires approximately 1 part cement to 3 parts sand and 3 parts aggregate, that is combined with water until it’s a suitable thickness. We use only the finest quality materials in our ready mix concrete, and can supply various grades to suit your project.
The standard thickness for a concrete slab in residential construction is 4 inches. This may need to be increased to five or six inches if the slab will need to support heavier loads, such as very heavy vehicles or large structures.
We work 7:00am to 5:00pm Monday to Friday, and 7:00am to 12:00pm on Saturday. If you require assistance or service outside of these hours, please call us to discuss availability.
Yes, we do take account customers; please contact us for further information about arranging this.
